EP1161778B1 - Electrical connector with idc screw - Google Patents

Electrical connector with idc screw Download PDF

Info

Publication number
EP1161778B1
EP1161778B1 EP00901766A EP00901766A EP1161778B1 EP 1161778 B1 EP1161778 B1 EP 1161778B1 EP 00901766 A EP00901766 A EP 00901766A EP 00901766 A EP00901766 A EP 00901766A EP 1161778 B1 EP1161778 B1 EP 1161778B1
Authority
EP
European Patent Office
Prior art keywords
connector
drive member
connecting bolt
opening
shroud
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00901766A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1161778A1 (en
Inventor
Gary Barnett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tyco Electronics UK Ltd
Original Assignee
Tyco Electronics UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tyco Electronics UK Ltd filed Critical Tyco Electronics UK Ltd
Publication of EP1161778A1 publication Critical patent/EP1161778A1/en
Application granted granted Critical
Publication of EP1161778B1 publication Critical patent/EP1161778B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
    • H01R4/2483—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts penetrating the area under the screw tip

Definitions

  • This invention relates to an electrical connector, and in particular to an electrical connector suitable for use with live electrical conductors.
  • GB-A-2281599 discloses an electrical connector comprising a clamp having a bore into which a screw is screwed to clamp a cable.
  • the screw is arranged to shear at an axial position along its length corresponding to the surface of the clamp when a predetermined clamping force is attained.
  • an electrical connector comprising a connector body including a socket for an electrical conductor, the connector body having a threaded bore in which a connecting bolt is threadedly engaged, the connecting bolt being capable of actuation into engagement with a conductor inserted into the socket by means of a drive member engaged with the connecting bolt, the connecting bolt being slidably mounted on the drive member, characterised in that the connector body has an electrically insulating shroud and the drive member extends through an opening in the insulating shroud to a rotatable, electrically insulating cap, the drive member being adapted to shear at a position between the opening in the insulating shroud and the point of engagement of the drive member with the connecting bolt when a predetermined torque is applied to the drive member, such that the cap and a residual portion of the drive member attached thereto can be withdrawn from the opening in the insulating shroud, and the opening in the insulating shroud being adapted substantially to close after the drive member has so sheared
  • the insulating shroud applied to the connector body is most preferably a plastics coating.
  • the shroud may be applied to the connector body, or to the components which make up the connector body, by any of a number of techniques.
  • the shroud may be formed as an injection-moulded component which snaps into place, or the body or component may be dipped in molten plastics material.
  • the drive member may be formed integrally with the cap, eg by being moulded with the cap in plastics material.
  • the drive member may be formed in metal, eg brass or steel, and the cap may be moulded in plastics material about one end of the drive member.
  • the electrically insulating shroud preferably covers the opening of the threaded bore, extending up to the portion of the drive member which extends through the shroud.
  • the shroud preferably takes the form of a petal washer or the like, ie it is formed with a number of leaves which are resiliently deformed by the drive member but which relax to cover the opening of the threaded bore when the drive member shears and is removed with the cap.
  • leaves may be formed as part of a separate bushing which is fitted into the opening in the insulating shroud.
  • a cap 10 of plastics material is moulded about the head 9.
  • the cap 10 has an hexagonal upper portion 10a, which is dimensioned to fit a suitable tool, and a downwardly depending circular skirt 10b which rests on the upper surface of the shroud 12.
  • the shroud 12 extends across the open upper end of the threaded bore 4, the shroud 12 in this region adopting the form of a petal washer, through the centre of which the extension piece 8 extends.
  • the spindle 7 and extension piece 8 are of metal. It will be appreciated, however, that these components do not need to be electrically conducting.
  • a metal such as brass is used merely because it enables the extension piece and spindle to be produced with the requisite mechanical strength and to shear at the desired torque.
  • the spindle, extension piece and the cap could be moulded integrally in plastics material, if such a material also provides these properties.
  • Figure 4 shows a view similar to Figure 1 of a second embodiment incorporating another possible modification.
  • components corresponding to those of the Figure 1 embodiment are identified by the same reference numerals.
  • This embodiment differs from that of Figure 1 in that the open upper end of the threaded bore 4 is closed by a separate bushing 22 which is overlaid around its periphery, and retained in place, by the shroud 12.
  • the petal washer-like component which closes the upper end of the threaded bore 4 is a separate component rather than being formed integrally with the shroud 12.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)
  • Installation Of Indoor Wiring (AREA)
EP00901766A 1999-02-04 2000-02-03 Electrical connector with idc screw Expired - Lifetime EP1161778B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9902358.2A GB9902358D0 (en) 1999-02-04 1999-02-04 Electrical connector
GB9902358 1999-02-04
PCT/GB2000/000309 WO2000046878A1 (en) 1999-02-04 2000-02-03 Electrical connector with idc screw

Publications (2)

Publication Number Publication Date
EP1161778A1 EP1161778A1 (en) 2001-12-12
EP1161778B1 true EP1161778B1 (en) 2003-08-06

Family

ID=10847010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00901766A Expired - Lifetime EP1161778B1 (en) 1999-02-04 2000-02-03 Electrical connector with idc screw

Country Status (11)

Country Link
US (1) US6402544B1 (xx)
EP (1) EP1161778B1 (xx)
CN (1) CN1225059C (xx)
AT (1) ATE246850T1 (xx)
AU (1) AU755568B2 (xx)
DE (1) DE60004333T2 (xx)
ES (1) ES2204499T3 (xx)
GB (2) GB9902358D0 (xx)
HK (1) HK1039218A1 (xx)
WO (1) WO2000046878A1 (xx)
ZA (1) ZA200106957B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9926519D0 (en) * 1999-11-10 2000-01-12 B & H Nottingham Ltd Insulation piercing bolt
US7104832B2 (en) * 2004-08-05 2006-09-12 3M Innovative Properties Company Modular electrical connector and method of using
US7090544B2 (en) * 2004-08-05 2006-08-15 3M Innovative Properties Company Modular electrical connector and method of using
GB2443001A (en) * 2006-10-21 2008-04-23 Tyco Electronics Ltd Uk Bolt having extending contact tip
US7915530B2 (en) 2008-04-01 2011-03-29 Thomas & Betts Corporation Torque limiting device for insulated plug
US9147967B2 (en) 2012-09-11 2015-09-29 Tyco Electronics Canada Ulc Electrical connectors and methods for using same
US9196978B2 (en) 2013-05-03 2015-11-24 Thomas & Betts International Llc Grounding and bonding bracket
US9859628B1 (en) * 2016-12-20 2018-01-02 Tyco Electronics Canada Ulc Insulation piercing connector
US11067113B2 (en) 2017-03-28 2021-07-20 Cerro Wire Llc Screw insert and tool for use with screw insert
WO2019203809A1 (en) * 2018-04-17 2019-10-24 Cerro Wire Llc Screw insert and tool for use screw insert

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865007A (en) * 1973-07-30 1975-02-11 Square D Co Torque determining allen screw
FR2457578A1 (fr) * 1979-05-23 1980-12-19 Niled Sa Dispositif de connexion electrique du type a perforation d'isolant
EP0067917B1 (fr) * 1981-06-18 1985-08-28 MARS-ALCATEL Société anonyme dite: Dispositif de raccordement de câble isolé par perforation d'isolant
FR2514205A1 (fr) * 1981-10-05 1983-04-08 Merlin Gerin Borne de raccordement de cables conducteurs a un appareil electrique
DE4230428A1 (de) * 1991-12-09 1993-06-17 Hilti Ag Huelse zur erhoehung des haltewertes einer schraube
US5314359A (en) * 1993-06-07 1994-05-24 Evan Probst Battery cable terminal
GB9404979D0 (en) * 1994-03-15 1994-04-27 Sicame Electrical Dev Ltd Improvements relating to clamping screws
GB9507240D0 (en) * 1995-04-07 1995-05-31 B & H Nottingham Ltd Fastener
US6193719B1 (en) * 1995-08-24 2001-02-27 Sofamor S.N.C. Threaded clamping plug for interconnecting two implants of a spinal osteosynthesis instrumentation or other implants
FI102120B1 (fi) * 1997-03-07 1998-10-15 Sekko Ab Oy Päällystetyn ilmajohdon liitin ja siinä käytettävä momenttiruuvi
US6186716B1 (en) * 1998-11-12 2001-02-13 Westerlund Products Corporation Anchor bolt

Also Published As

Publication number Publication date
GB0002376D0 (en) 2000-03-22
ES2204499T3 (es) 2004-05-01
WO2000046878A1 (en) 2000-08-10
HK1039218A1 (zh) 2002-04-12
CN1225059C (zh) 2005-10-26
GB9902358D0 (en) 1999-03-24
GB2346490A (en) 2000-08-09
DE60004333T2 (de) 2004-06-03
US6402544B1 (en) 2002-06-11
AU2306600A (en) 2000-08-25
DE60004333D1 (de) 2003-09-11
EP1161778A1 (en) 2001-12-12
CN1339185A (zh) 2002-03-06
AU755568B2 (en) 2002-12-19
ZA200106957B (en) 2002-08-23
GB2346490B (en) 2002-10-09
ATE246850T1 (de) 2003-08-15

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